ISO 15540:2016

Ships and marine technology - Fire resistance of non-metallic hose assemblies and non-metallic compensators - Test methods

ISO 15540:2016 specifies a test procedure for determining the fire resistance of non-metallic hose assemblies and non-metallic compensators with nominal diameter of up to 150 mm. It may be used for larger sizes provided proper test bench conditions are obtained. It serves for proving whether, after the period of fire effect on the test bench specified in ISO 15541, hose assemblies and non-metallic compensators continue to be tight, even when subjected to proof pressure. Only water is permitted as a test medium. With a view to ensuring maximum safety for both the operating personnel and the test bench in the event of damage to the hose or non-metallic compensator during the test, the use of combustible test media is excluded.

Navires et technologie maritime — Résistance au feu des flexibles et des compensateurs non métalliques — Méthodes d’essais

General Information

• Status: Published
• Publication Date: 18-Jul-2016
• ICS: 47.020.30 - Piping systems
• ICS: 83.140.40 - Hoses
• Technical Committee: ISO/TC 8/SC 3 - Piping and machinery
• Drafting Committee: ISO/TC 8/SC 3 - Piping and machinery
• Current Stage: 9093 - International Standard confirmed
• Start Date: 09-Sep-2022
• Completion Date: 13-Dec-2025

Relations

• Consolidated By: ISO 8596:2017/Amd 1:2019 - Ophthalmic optics - Visual acuity testing - Standard and clinical optotypes and their presentation - Amendment 1
• Effective Date: 06-Jun-2022
• Revises: ISO 15540:1999 - Ships and marine technology - Fire resistance of hose assemblies - Test methods
• Effective Date: 23-Aug-2014

Overview

ISO 15540:2016 - Ships and marine technology - Fire resistance of non-metallic hose assemblies and non-metallic compensators - Test methods specifies a reproducible laboratory procedure to determine whether non‑metallic (rubber) hose assemblies and non‑metallic compensators remain leak‑tight after exposure to fire. The standard covers nominal diameters up to 150 mm (and can be applied to larger sizes with appropriate test‑bench adjustments) and requires testing using water as the only test medium to maximize safety.

Key topics and technical requirements

• Test scope and specimens

  • Applies to non‑metallic hose assemblies and compensators; hose test length ≥ 500 mm.
  • Minimum of three specimens per series (smallest, middle, largest nominal diameters).
  • Specimens stored at ambient temperature for 24 h before testing.
  • Option to test with (F) or without (B) fire sleeves; all specimens in a series must follow the agreed option.

• Test environment and bench

  • Tests must be performed on a test bench conforming to ISO 15541 (test bench requirements).
  • Burner dimensions are chosen so flames fully enclose the specimen; minimum burner widths are defined by specimen outside diameter.

• Measured parameters

  • Water temperatures at inlet/outlet: typically (80 ± 2) °C and max 85 °C.
  • Flame temperature at designated points: (800 ± 50) °C.
  • Flow rate of water and internal pressure during flame exposure are recorded.

• Pressure and duration

  • Working pressure during flame application: at least (5 ± 0,2) bar or the component’s M.A.W.P. (as marked).
  • Flame exposure duration: 30 minutes (starts when target flame temperatures are reached at both measuring points).
  • After flame exposure, a proof pressure test at ambient temperature is applied:
    • Hose assemblies: proof pressure per applicable hose standard (normally 2× M.A.W.P.).
    • Compensators: proof pressure 1.5× M.A.W.P. (can be omitted if specimen was at M.A.W.P. during flame).

• Pass/fail and certification

  • Test is passed if the specimen remains tight under proof pressure after flame exposure.
  • Failed tests require repeat testing; passing results are certified with a type test certificate (Annex A).

Applications and users

ISO 15540 is used for:

• Type approval and certification of marine hose assemblies and compensators.
• Product development and fire‑performance validation by manufacturers.
• Procurement specifications for shipbuilders, ship operators and classification societies.
• Marine safety engineers, testing laboratories, and regulatory/compliance teams assessing fire resistance of piping components.

Keywords: ISO 15540, fire resistance, non‑metallic hose assemblies, non‑metallic compensators, marine, test methods, ISO 15541, proof pressure, burner width.

Related standards

• ISO 15541 - Ships and marine technology - Fire resistance of non‑metallic hose assemblies and non‑metallic compensators - Requirements for the test bench (required test‑bench specification).

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 15540
Second edition
2016-07-15
Ships and marine technology —
Fire resistance of non-metallic
hose assemblies and non-metallic
compensators — Test methods
Navires et technologie maritime — Résistance au feu des flexibles et
des compensateurs non métalliques — Méthodes d’essais
Reference number
©
ISO 2016
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2016 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Designation . 1
5 Test specimen and specimen preparation . 2
6 Number of test specimen . 2
7 Test bench . 2
8 Test performance . 2
8.1 Installation of test specimen . 2
8.2 Burner width . 3
8.3 Preparation . 3
8.4 Measured values and measuring points . 3
8.5 Temperature during flame application . 4
8.6 Pressure during flame application . 4
8.7 Duration of test . 4
8.8 Proof pressure application . 5
9 Assessment . 5
10 Type test certificate . 5
Annex A (normative) Type test certificate . 6
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment,
as well as information about ISO’s adherence to the World Trade Organization (WTO) principles in the
Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.
The committee responsible for this document is ISO/TC 8, Ships and marine technology, Subcommittee
SC 3, Piping and machinery.
This second edition cancels and replaces the first edition (ISO 15540:1999), which has been technically
revised. It also incorporates the Technical Corrigendum ISO 15540:1999/Cor 1:1999.
The most significant change in this second edition is the inclusion of non-metallic compensators to the
fire test procedures outlined in this document. The first edition of this document applied primarily to
non-metallic hose assemblies. Because the compensators are used in common piping systems and may
have similar materials to hose assemblies, the applicability of the test procedures was expanded to
include compensators.
iv © ISO 2016 – All rights reserved

Introduction
The main objective of the test using the test bench described in this document is to determine whether
and for a safety period a non-metallic hose (made of rubber) assembly or non-metallic compensator
(bellow made of rubber) can be exposed to fire without becoming inoperable when subjected to the
design working pressure. Although the attacking fire is simulated such that it corresponds to a fire
occurring in practice, it cannot be assumed that the duration of fire resistance as recorded during that
test will also occur in the event of an actual fire, as the installation conditions, which greatly affect to
the duration of fire resistance, may vary from case to case.
When carried out using the test bench specified in ISO 15541, the test procedure according to this
document is intended to lead to results capable of being reproduced by testing the same size and type.
A specimen test certificate is specified in Annex A.
INTERNATIONAL STANDARD ISO 15540:2016(E)
Ships and marine technology — Fire resistance of non-
metallic hose assemblies and non-metallic compensators
— Test methods
1 Scope
This document specifies a test procedure for determining the fire resistance of non-metallic hose
assemblies and non-metallic compensators with nominal diameter of up to 150 mm. It may be used for
larger sizes provided proper test bench conditions are obtained.
It serves for proving whether, after the period of fire effect on the test bench specified in ISO 15541,
hose assemblies and non-metallic compensators continue to be tight, even when subjected to proof
pressure.
Only water is permitted as a test medium. With a view to ensuring maximum safety for both the
operating personnel and the test bench in the event of damage to the hose or non-metallic compensator
during the test, the use of combustible test media is excluded.
2 Normative references
The fo
...

DRAFT INTERNATIONAL STANDARD
ISO/DIS 15540
ISO/TC 8/SC 3 Secretariat: ANSI
Voting terminates on:
Voting begins on:
2015-12-03 2016-03-03
Ships and marine technology — Fire resistance of
non-metallic hose assemblies and non-metallic
compensators — Test methods
Titre manque
ICS: 83.140.40; 47.020.30
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 15540:2015(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2015

ISO/DIS 15540:2015(E)
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2015 – All rights reserved

ISO/DIS 15540
Contents Page
Foreword . iv
Introduction . iv
1 Scope . 1
2 Normative references . 1
3 Designation . 1
4 Test specimen and specimen preparation . 2
5 Number of test specimen . 2
6 Test bench . 2
7 Test performance . 3
7.1 Installation of test specimen . 3
7.2 Burner width . 3
7.3 Preparation . 4
7.4 Measured values and measuring points . 4
7.5 Temperature during flame application. 4
7.6 Pressure during flame application . 5
7.7 Duration of test . 5
7.8 Proof pressure application . 5
8 Assessment . 5
9 Type test certificate . 5
Annex A (normative) Type test certificate . 6
Figures
Figure 1 — Test specimen arrangement (hose assembly) . 3
Figure 2 — Temperature measuring points . 4
Tables
Table 1 — Burner width. 3
Table 2 — Temperatures . 5
ISO/DIS 15540
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 15540 was prepared by Technical Committee ISO/TC 8, Ships and marine technology, Subcommittee
SC 3, Piping and machinery.
iv © ISO 2015 – All rights reserved

ISO/DIS 15540
Introduction
The main objective of the test using the test bench described in this International Standard is to determine
whether and for a safety period a non-metallic hose (made of rubber) assembly or non-metallic compensator
(bellow made of rubber) can be exposed to fire without becoming inoperable when subjected to the design
working pressure. Although the attacking fire is simulated such that it corresponds to a fire occurring in
practice, it cannot be assumed that the duration of fire resistance as recorded during that test will also occur in
the event of an actual fire, as the installation conditions, which greatly affect to the duration of fire resistance,
may vary from case to case.
When carried out using the test bench specified in ISO 15541, the test procedure according to this
International Standard is intended to lead to results capable of being reproduced by testing the same size and
type.
A specimen test certificate is specified in Annex A.
DRAFT INTERNATIONAL STANDARD ISO/DIS 15540

Ships and marine technology — Fire resistance of non-metallic
hose assemblies and non-metallic compensators — Test
methods
1 Scope
This International Standard specifies a test procedure for determining the fire resistance of non-metallic hose
assemblies and non-metallic compensators with nominal diameter of up to 150 mm. It may be used for larger
sizes provided proper test bench conditions are obtained.

It serves for proving whether, after the period of fire effect on the test bench specified in ISO 15541, hose
assemblies and non-metallic compensators continue to be tight, even when subjected to proof pressure.

Only water is permitted as a test medium. With a view to ensuring maximum safety for both the operating
personnel and the test bench in the event of damage to the hose or non-metallic compensator during the test,
the use of combustible test media is excluded.

2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

ISO 15541, Ships and marine technology — Fire resistance of non-metallic hose assemblies and non-
metallic compensators — Requirements for the test bench

3 Designation
The designation of
...